Replace scoped_ptr with std::unique_ptr in //ui

ui/views/widget/native_widget_mac_interactive_uitest.mm

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ui/views/widget/native_widget_mac.h"
 
 #import <Cocoa/Cocoa.h>
 
 #import "base/mac/mac_util.h"
 #import "base/mac/scoped_nsobject.h"
@@ skipping 20 matching lines @@
     // interactive_ui_tests target. See http://crbug.com/403679.
     ui_controls::EnableUIControls();
   }
 
   Widget* MakeWidget() {
     return GetParam() ? CreateTopLevelFramelessPlatformWidget()
                       : CreateTopLevelPlatformWidget();
   }
 
  protected:
-  scoped_ptr<Observer> observer_;
+  std::unique_ptr<Observer> observer_;
   int activationCount_;
   int deactivationCount_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(NativeWidgetMacInteractiveUITest);
 };
 
 class NativeWidgetMacInteractiveUITest::Observer : public TestWidgetObserver {
  public:
   Observer(NativeWidgetMacInteractiveUITest* parent, Widget* widget)
@@ skipping 159 matching lines @@
   other_widget->CloseNow();
   parent_widget->CloseNow();
 }
 
 INSTANTIATE_TEST_CASE_P(NativeWidgetMacInteractiveUITestInstance,
                         NativeWidgetMacInteractiveUITest,
                         ::testing::Bool());
 
 }  // namespace test
 }  // namespace views